Technology · Serendipity
Serendipity vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 8 vulnerabilities in Serendipity: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73628, was published on 13 August 2026.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Serendipity
Serendipity is a PHP-based weblog engine which provides users with an easy way to maintain an online diary and digest.
Latest Serendipity vulnerabilities
- CVE-2026-73628: Serendipity reflected XSS in search clean-URL routemediumCVSS 6.1EPSS 0.3%
- CVE-2026-67350: Serendipity open redirect in exit.phpmediumCVSS 4.3
- CVE-2026-67351: Serendipity privilege escalation via authentication context confusionhighCVSS 8.8
- CVE-2026-39963: Serendipity Host Header Injection in serendipity_setCookiemediumCVSS 6.9
- CVE-2017-5609: Serendipity SQL injection in include/functions_entries.inc.phphighCVSS 8.8
- CVE-2017-5476: Serendipity CSRF in plugin installationhighCVSS 8.8
- CVE-2017-5475: Serendipity CSRF in comment.php comment deletionhighCVSS 8.8
- CVE-2017-5474: Serendipity open redirect in comment.phpmediumCVSS 6.1
Most severe Serendipity vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-67351: Serendipity privilege escalation via authentication context confusionhighCVSS 8.8
- CVE-2017-5609: Serendipity SQL injection in include/functions_entries.inc.phphighCVSS 8.8
- CVE-2017-5476: Serendipity CSRF in plugin installationhighCVSS 8.8
- CVE-2017-5475: Serendipity CSRF in comment.php comment deletionhighCVSS 8.8
- CVE-2026-39963: Serendipity Host Header Injection in serendipity_setCookiemediumCVSS 6.9
- CVE-2026-73628: Serendipity reflected XSS in search clean-URL routemediumCVSS 6.1EPSS 0.3%
- CVE-2017-5474: Serendipity open redirect in comment.phpmediumCVSS 6.1
- CVE-2026-67350: Serendipity open redirect in exit.phpmediumCVSS 4.3
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 2 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 1 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/serendipity.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Serendipity vulnerabilities", https://junglewise.ai/threats/technologies/serendipity, 26 September 2026.